A disastrous cave-in Thursday night killed three rescue workers and injured at least six others who were trying to tunnel through rubble to reach trapped miners, authorities said. Mining officials were considering whether to suspend the rescue effort.

HUNTINGTON, Utah - Efforts to reach six coal miners trapped more than 1,500 feet underground will take at least three days, and rescuers weren't even sure the men had survived the cave-in, one of the mine's owners said Tuesday.

In February in Pismo Beach, Calif., a sedan carrying a retired couple attempting to park their sedan plunged over a 125' cliff. First responders needed to be well prepared to successfully conduct the difficult rescue operation.